Surface segregation and chromium deposition and poisoning on La 0.6Sr0.4Co0.2Fe0.8O 3-d cathodes of solid oxide fuel cells
La0.6Sr0.4Co0.2Fe0.8O 3-d, (LSCF) perovskite oxide is one of the most common cathode materials used in solid oxide fuel cells (IT-SOFCs), but vulnerable to the chromium deposition and poisoning in the presence of gaseous chromium species from metallic interconnect. In this work, the fundamental rela...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Electrochemical Society Inc.
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/34922 |
| _version_ | 1848754355195346944 |
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| author | Zhao, L. Drennan, J. Kong, C. Amarasinghe, S. Jiang, San Ping |
| author_facet | Zhao, L. Drennan, J. Kong, C. Amarasinghe, S. Jiang, San Ping |
| author_sort | Zhao, L. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | La0.6Sr0.4Co0.2Fe0.8O 3-d, (LSCF) perovskite oxide is one of the most common cathode materials used in solid oxide fuel cells (IT-SOFCs), but vulnerable to the chromium deposition and poisoning in the presence of gaseous chromium species from metallic interconnect. In this work, the fundamental relationship between the surface segregation and Cr deposition and poisoning of LSCF cathodes is studied on dense LSCF bar samples. The detailed SEM and FIB-EDS analysis results clearly indicate the segregation of strontium and cobalt, forming individual SrO and CoOx particles on the LSCF surface after annealing at 800 °C for 96 h. The results indicate that Cr deposition occurs preferentially on the segregated SrO particles on the LSCF surface. © The Electrochemical Society. |
| first_indexed | 2025-11-14T08:39:05Z |
| format | Journal Article |
| id | curtin-20.500.11937-34922 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:39:05Z |
| publishDate | 2013 |
| publisher | Electrochemical Society Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-349222018-03-29T09:08:37Z Surface segregation and chromium deposition and poisoning on La 0.6Sr0.4Co0.2Fe0.8O 3-d cathodes of solid oxide fuel cells Zhao, L. Drennan, J. Kong, C. Amarasinghe, S. Jiang, San Ping La0.6Sr0.4Co0.2Fe0.8O 3-d, (LSCF) perovskite oxide is one of the most common cathode materials used in solid oxide fuel cells (IT-SOFCs), but vulnerable to the chromium deposition and poisoning in the presence of gaseous chromium species from metallic interconnect. In this work, the fundamental relationship between the surface segregation and Cr deposition and poisoning of LSCF cathodes is studied on dense LSCF bar samples. The detailed SEM and FIB-EDS analysis results clearly indicate the segregation of strontium and cobalt, forming individual SrO and CoOx particles on the LSCF surface after annealing at 800 °C for 96 h. The results indicate that Cr deposition occurs preferentially on the segregated SrO particles on the LSCF surface. © The Electrochemical Society. 2013 Journal Article http://hdl.handle.net/20.500.11937/34922 10.1149/05701.0599ecst Electrochemical Society Inc. restricted |
| spellingShingle | Zhao, L. Drennan, J. Kong, C. Amarasinghe, S. Jiang, San Ping Surface segregation and chromium deposition and poisoning on La 0.6Sr0.4Co0.2Fe0.8O 3-d cathodes of solid oxide fuel cells |
| title | Surface segregation and chromium deposition and poisoning on La 0.6Sr0.4Co0.2Fe0.8O 3-d cathodes of solid oxide fuel cells |
| title_full | Surface segregation and chromium deposition and poisoning on La 0.6Sr0.4Co0.2Fe0.8O 3-d cathodes of solid oxide fuel cells |
| title_fullStr | Surface segregation and chromium deposition and poisoning on La 0.6Sr0.4Co0.2Fe0.8O 3-d cathodes of solid oxide fuel cells |
| title_full_unstemmed | Surface segregation and chromium deposition and poisoning on La 0.6Sr0.4Co0.2Fe0.8O 3-d cathodes of solid oxide fuel cells |
| title_short | Surface segregation and chromium deposition and poisoning on La 0.6Sr0.4Co0.2Fe0.8O 3-d cathodes of solid oxide fuel cells |
| title_sort | surface segregation and chromium deposition and poisoning on la 0.6sr0.4co0.2fe0.8o 3-d cathodes of solid oxide fuel cells |
| url | http://hdl.handle.net/20.500.11937/34922 |